(S)-2,3-dihydropolyprenyl, monophosphate, and agents for inhibiting the metastasis of cancers

Abstract

Disclosed are (S)-2,3-dihydropolyprenol of formula (I) ##STR1## wherein m is 7 or 8 and (S)-2,3-dihydropolyprenyl monophosphate of formula (II) ##STR2## wherein m is 7 or 8 as well as pharmaceutically acceptable salts thereof. They are useful as a medicament for inhibiting the growth and/or metastasis of cancers.

What is claimed is: 
     
       1. A (S)-2,3-dihydropolyprenyl monophosphate of formula (II) ##STR12## wherein m is 7 or 8 or the pharmaceutically acceptable salt thereof. 
     
     
       2. An agent for inhibiting the growth and/or metastasis of cancers which comprises as an active ingredient, a (S)-2,3-dihhydropolyprenyl monophosphate of formula (II) ##STR13## wherein m is 7 or 8 or the pharmaceutically acceptable salt thereof.